The North Scottsdale Chamber of Commerce will issue a report this week asserting the loss of US Airways' Tempe headquarters will devastate the local economy, countering what the airline has said about its potential merger with American Airlines.

HARRISBURG, Pa. Former U.S. Sen. Arlen Specter, the outspoken Pennsylvania centrist whose switch from Republican to Democrat ended a 30-year career in which he played a pivotal role in several Supreme Court nominations, died Sunday. He was 82.

TROY, Mich. Rick Santorum and Mitt Romney tried vigorously to undermine each other's conservative bona fides Saturday in a bid to rally new supporters ahead of a crucial primary for the two leading Republican presidential candidates.